Retrocalcaneal bursitis is the inflammation of the retrocalcaneal bursa, which is located behind the heel bone, also known as the calcaneal bone (hence the name retrocalcaneal). The retrocalcaneal bursa is a thin, slippery, fluid-filled sac that serves as a both a cushion and lubricant between the heel bone and the Achilles tendon. Inflammation of the retrocalcaneal bursa usually results from irritation of the bursa. This irritation may be due to certain activities, an underlying health condition such as arthritis, or an abnormality of the foot, such the development of a boney prominence on the calcaneal bone, called a Haglund's deformity.
Bursitis occurs when the bursae become irritated or infected, often causing pain on movement. When infection is involved, medical intervention is necessary to fight the underlying infection and prevent it from spreading, when infection is not involved, prompt medical attention can prevent the condition from becoming worse over time.
When the bursa becomes inflamed after an injury, symptoms usually develop suddenly. When the bursa develops without an injury, symptoms may develop gradually. With both posterior and anterior Achilles tendon bursitis, symptoms usually include swelling and warmth at the back of the heel. A minimally red, swollen, tender spot develops on the back of the heel. When the inflamed bursa enlarges, it appears as a red lump under the skin of the heel and causes pain at and above the heel. If posterior Achilles tendon bursitis becomes chronic, the swelling may become hard, fluid-filled, and red or flesh-colored.
Before making a diagnosis of retrocalcaneal bursitis, a doctor must rule out other possible problems, such as arthritis, a fracture or tumor. A doctor also will try to determine if the Achilles tendon itself is a source of pain. To make a diagnosis, a doctor will use some or all of the diagnostic tools below Patient interview. A doctor will ask a patient about medical history, and to describe the onset of his or her symptoms, the pattern of pain and swelling, and how symptoms affect lifestyle. For example, doctors may ask patients what types of shoes they wear and what they do for exercise. A patient's reported symptoms are important to diagnosis and treatment. The doctor will also ask what home treatments have helped the condition. Physical exam. A doctor will examine the patient's foot, noting swelling, tenderness and pain points, and range of motion. The doctor also may ask the patient to point and flex the feet and stand on his or her toes.
Non Surgical Treatment
Physical therapy is also used to treat retrocalcaneal bursitis. People with this condition may be instructed to use ice on the heel and ankle several times each day. Ice should be applied for periods of 15 to 20 minutes. Prolonged use of ice is not recommended because it can stop blood flow if left in place for a long period of time. Exercises and stretches for the Achilles tendon can help to relieve some of the pressure on the bursae below the tendons. If physical activity must be limited due to a flare-up of this condition, other exercises can be done to maintain fitness. They include water aerobics and swimming.
Surgery. Though rare, particularly challenging cases of retrocalcaneal bursitis might warrant a bursectomy, in which the troublesome bursa is removed from the back of the ankle. Surgery can be effective, but operating on this boney area can cause complications, such as trouble with skin healing at the incision site. In addition to removing the bursa, a doctor may use the surgery to treat another condition associated with the retrocalcaneal bursitis. For example, a surgeon may remove a sliver of bone from the back of the heel to alter foot mechanics and reduce future friction. Any bone spurs located where the Achilles attaches to the heel may also be removed. Regardless of the conservative treatment that is provided, it is important to wait until all pain and swelling around the back of the heel is gone before resuming activities. This may take several weeks. Once symptoms are gone, a patient may make a gradual return to his or her activity level before their bursitis symptoms began. Returning to activities that cause friction or stress on the bursa before it is healed will likely cause bursitis symptoms to flare up again.